body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
}
header {
    text-align: center;
    padding-bottom: 10px;
}
img {
    display: block;
    margin: 0 auto;
    width: 200px;
    height: 200px;
    border:solid 1px #ddd;
    border-radius: 50%;
}
h1 {
    text-align: center;
}
h2 {
    text-align: center;
    padding: 10px 0;
}
.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}